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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Dev Platform
Audio
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Agents
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Manus
S
Sora
A
Perplexity
S
Groq
S
TaglineAutonomous AI agent that actually finishes tasks.OpenAI's video model. Long clips, cinematic quality.AI search done right. Cited answers, not chat theater.The fastest AI inference in the world. Crazy low latency.
CategoryAgentsVideoResearchDev Platform
PricingFree tier + $39-$199/moIncluded with ChatGPT Plus/ProFree + $20/mo ProFree tier + pay-as-you-go API
Best forPeople who want to hand off tasks entirely — trip planning, research, spreadsheet building.ChatGPT subscribers experimenting with cinematic shots.Replacing Google for any question where you want a cited answer in seconds.Developers who need sub-100ms LLM responses.
Strengths
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
Weaknesses
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
Kai's verdictS-tier in the agent category. The first one I'd give to a non-technical friend.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for speed. When latency is the product, start here.
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